const {app, BrowserWindow, Menu, MenuItem} = require('electron')
const path = require('path')
const url = require('url')
const pkg = require('./package.json')
const os = require('os')

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let win

function createWindow () {
  // Create the browser window.
  win = new BrowserWindow({frame:false, show:true, width: 800, height: 600})
  
  // and load the index.html of the app.
  //if dev
  if(pkg.DEV){
      win.loadURL("http://localhost:3000/")
    }else{
      win.loadURL(url.format({
      pathname: path.join(__dirname, './build/index.html'),
      protocol: 'file:',
      slashes: true
    }))
  }

  // init the menu
  // menu = new Menu()
  // menu.append(new MenuItem({ label: '退出'}))

  win.setMenu(null)

  // Open the DevTools.
  if(pkg.DEV){
    win.webContents.openDevTools()
  }
  

  // Emitted when the window is closed.
  win.on('closed', () => {
    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    win = null
  })

  //ipc main
  
}



// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', () => {
  // On macOS it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate', () => {
  // On macOS it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (win === null) {
    createWindow()
  }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.

